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Updated: Jul 18, 2026

Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
Electron-diffraction structure refinement of Ni4Ti3 precipitates in Ni52Ti48
Wim Tirry1, Dominique Schryvers, Kevin Jorissen
1Electron Microscopy for Materials Science (EMAT), University of Antwerp (UA), Groenenborgerlaan 171, B-2020 Antwerp, Belgium. wim.tirry@ua.ac.be
Abstract:
The atomic coordinates of the crystal structure of nanoscale Ni4Ti3 precipitates in Ni-rich NiTi is refined by means of a least-squares method based on intensity measures of electron-diffraction patterns. The optimization is performed in combination with density functional theory calculations and has yielded an R\bar 3 symmetry with slightly different atomic positions when compared with the existing structure. The new unit cell offers a better understanding of the lattice deformation from the B2 matrix.
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